Finding the Fourth Proportional to 88,307.10, 121,865.36 and 48,020.73
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Solution
The fourth proportional to 88,307.10, 121,865.36 and 48,020.73 is: 66,269.45
Step by Step Solution
- Step 1: Write the proportion equation
88,307.10 : 121,865.36 = 48,020.73 : x - Step 2: Convert to fraction form
88,307.10/121,865.36 = 48,020.73/x - Step 3: Cross multiply
88,307.10x = 121,865.36 × 48,020.73 - Step 4: Simplify right side
88,307.10x = 5,852,063,308.81 - Step 5: Solve for x
x = 5,852,063,308.81/88,307.10 - Step 6: Final answer
x = 66,269.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.